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WorksheetsWireless Networks Quiz CSE 1
Total questions: 20
Worksheet time: 7mins
Why is the traditional IEEE 802.11 MAC inefficient in WMNs?
It supports only the infrastructure mode
It doesn't provide address resolution
It lacks coordination among multiple hops
It uses static addressing
Which MAC enhancement helps to address the hidden terminal problem in WMNs?
CSMA/CA
RTS/CTS handshake
Exponential Backoff
AODV Routing
In IEEE 802.11s, the default path selection protocol is:
AODV
OLSR
HWMP
TORA
How does Cellular V2X (C-V2X) differ from DSRC in VMNs?
It relies on Wi-Fi technology
It is designed for short-range communication
It uses cellular networks like 4G/5G for long-range connectivity
It does not support vehicle-to-vehicle (V2V) communication
In heterogeneous WMNs, devices differ in:
The brand of operating systems installed on each device
The use of uniform hardware with different software environments
Transmission power, interface types, and communication protocols
The types of battery sources used during operation
How do WMNs support disaster recovery operations?
By establishing emergency links that rely solely on pre-laid fiber infrastructure
By facilitating quick deployment of decentralized, multi-hop communication systems
By leveraging high-orbit satellite links for backup communication only
By depending on permanent, centralized cellular tower setups for message relay
What mechanism in WMNs allows nodes to automatically adjust connections without human intervention?
Self-optimization through manual IP configuration
Self-configuration involving automatic adaptation of topology and routes
Centralized network reprogramming via cloud orchestration
Frequency locking through pre-defined channel allocation
Vehicular mesh networks are a specialized form of WMNs characterized by:
High-speed mobility and frequent topology changes
High node density with low mobility
Static topology
Minimal routing requirements
Which solution is best suited for efficient routing in vehicular mesh networks?
Static routing tables
Greedy Perimeter Stateless Routing (GPSR)
Round-Robin forwarding
Centralized route discovery
Which application domain is least suitable for WSNs due to their inherent limitations?
Environmental monitoring
Military surveillance
Real-time video streaming
Smart agriculture
What is the main function of the Power Management Plane in WSN?
Ensuring secure data transmission
Managing energy consumption of sensor nodes
Organizing routing paths
Controlling node mobility
In clustered WSN architecture, what role does the Cluster Head (CH) primarily serve?
Directly collecting data from all sensor nodes
Aggregating and forwarding data to the base station
Managing sensor node mobility
Encrypting the data before transmission
Which protocol uses attribute-based addressing for data dissemination in WSNs?
DSR
LEACH
Directed Diffusion
GPSR
What is the key difference between push-based and pull-based data dissemination strategies?
Push-based requires user requests, while pull-based sends data automatically
Push-based is more energy-efficient than pull-based
Push-based proactively sends data, while pull-based waits for requests
There is no difference between them
What is the main disadvantage of using GPS-based localization in WSNs?
High memory usage
High cost and energy consumption
High communication latency
Incompatibility with IPv6
Which parameter most directly impacts the reliability of WSN communication?
Sleep scheduling
Link quality
Sensing range
Node orientation
Which of the following is NOT a typical application of WSN?
Smart agriculture
Military surveillance
Online banking fraud detection
Industrial automation
What is the main purpose of mobility management in WSN?
To reduce redundant data
To ensure accurate location tracking of nodes
To encrypt communication channels
To increase the number of active nodes in the network
In range-based localization, which technique measures the difference in arrival times of two signals to estimate location?
RSSI
Time of Arrival (ToA)
Time Difference of Arrival (TDoA)
Angle of Arrival (AoA)
What is a primary limitation of the Leach Protocol in WSN?
Requires excessive energy consumption
Cluster head selection is random, leading to potential inefficiencies
It only supports a single communication hop
It does not support hierarchical network structures
